Linux Common Commands

lsb_release -a

Distributor ID: Debian
Description:    Debian GNU/Linux 10 (buster)
Release:    10
Codename:   buster

cat /etc/passwd | grep -v nologin|grep -v halt|grep -v shutdown|awk -F":" '{ print $1"|"$3"|"$4 }'|more

hostname -I

usermod -g groupname username

id -g -n

sudo add-apt-repository --remove ppa:qbittorrent-team/qbittorrent-stable

echo "$SHELL"

arch

dpkg --print-architecture

tar -xf x.tar.gz

tar -xf x.tar.gz -C ./xxx

command &> file

command >| file.txt 2>&1

scp root@ip:/path ~/Downloads

find . -name 'node_modules' -type d -prune -exec rm -rf '{}' +

find . -name 'target' -type d -prune -exec rm -rf '{}' +

sed -i 's/old-text/new-text/g' input.txt

ln -s source_file target_file

useradd -m USERNAME

cat /etc/shells

tail -3 file.txt

sudo du -a ./ 2>/dev/null | sort -n -r | head -n 20

find ./ -type f -printf '%s %p\n' | sort -nr | head -10